LOUDOUN COUNTY, Va. (WUSA) -- Loudoun County Sheriff's investigators have interviewed the husband of a woman who has been missing for more than a month.

Bethany Anne Decker, 21, was reported missing by her family on February 19. However, it was back on January 29 when she was last seen.

Bethany's mother, Kimberly Nelson, is raising her daughter's 17-month-old son, Kai. Nelson said it was not unusual to not hear from her daughter for a few days. But when family and friends realized nobody had heard from her in weeks, they became worried. Bethany's grandparents, Evelyn and Ed Bayles, decided to stop by Bethany's apartment in Ashburn on February 19. When they saw that her car was still there, but she wasn't, they became concerned and called police.

The family says Bethany's husband, Emile Decker, 21, a U.S. Army soldier serving in Afghanistan, came home for a visit in January. The couple flew to Hawaii for a visit with other family members.

When they returned to the area on January 28, they stayed with the Bayles in Columbia, Maryland. That was the last time the family says they saw her.

Emile Decker flew back to Afghanistan on February 2. Nelson says for past visits, Bethany would go with him to send him off at the airport. She did not show this time.

"That was a bit unusual," said Nelson.

Loudoun County Captain Ken Pratt says Emile Decker called the Sheriff's Department overnight and called back to speak to investigators Wednesday morning. Investigators say Decker is neither a suspect nor a person of interest. "He is cooperating and is anxious to help," said Pratt.

Pratt says arrangements are being made through the military to have an electronic face-to-face follow-up interview with him soon.

Anyone with information on Bethany Anne Decker's disappearance is being asked to call the Loudoun County Sheriff's Office.